Issued Patents All Time
Showing 26–28 of 28 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9664461 | Multi-poise condensate drain pan | Barry W. Lee, Alice R. Walker | 2017-05-30 |
| 9404669 | Application of electric heat coil in fan unit | Frank J. David | 2016-08-02 |
| 9309652 | Water collection container and lid | — | 2016-04-12 |